Effect of pre-harvest foliar sprays of zinc on post-harvest changes in the quality of mango cv. Dashehari.
Kumar O. V., Kumar G.
Author Affiliation: Department of Horticulture, G.B. Pant University of Agriculture and Technology, Pantnagar 263?145, India.
: 763-770
Abstract : Sprays of 1% ZnSO4 were applied either once only on 11 May or for a second time 20 days later to 30-year-old Dashehari trees, and their effect on mangoes harvested on 15 June and stored at room temperature (29-34°C, 85-90% RH) for 10 days was determined. Fruits sprayed with Zn showed less weight loss and spoilage, and higher sugar content and lower acidity, than unsprayed fruit after 10 days' storage. During storage, vitamin C content increased initially and then decreased and was unaffected by Zn sprays. Vitamin A content, which increased throughout the 10-day storage period, was increased slightly by Zn sprays. Two Zn sprays were more beneficial than a single spray.